Centralization and scaling

FEATURE	OS		DESCRIPTION
Multiserver architecture	√	√	Provides high flexibility of the system and resiliency of its components
Main and subordinate servers	√	√	By default, one server in the system is assigned as the main server, and the others as subordinate. The system parameters are stored on the main server. Each subordinate server stores a backup copy of the system parameters. Such architecture ensures the integrity of the system, providing, at the same time, the fault tolerance in cases when the subordinate servers lose connection with the main server. Moreover, in case of a failure of the main server, any subordinate server can be assigned as the main one without losing the system settings
System merging	√	√	To connect another multiserver system to the current video surveillance system, it is sufficient to connect one of the servers of this system; the other servers will be connected automatically
Disconnection of servers	√	√	When a server is disconnected from the multiserver system, all the cameras bound to it are disconnected as well; the camera settings are preserved. Thus, the simple and trouble-free migration of servers between multiserver systems is ensured

FEATURE	OS		License					DESCRIPTION
			ML	LS	ST	Enterprise	ULTRA
Video analytics server	√	√	–	+	+	+	+	One of the servers can be assigned as a video analytics server. Video analysis modules will operate on this server, processing video sent to the video analytics server from other servers. Archiving and broadcasting data to client workplaces will be performed by general video surveillance servers. The video analytics server allows to take the load connected with video analytics off the general servers

√	available
+	available at additional cost
–	not available